While we would support Family Sharing, Volt is unable to due to Apple's settings. Our subscriptions are considered an in-app purchase which is not compatible with Family Share. This is an Apple policy that can not be changed by Volt.
We understand that our app store description says Volt supports Family Share since Volt is free to download. Unfortunately, this is an Apple designation that can not be changed.
We apologize for any confusion. If you have further questions, please connect with our support team.